Hose coupling device



Nov, 3, 1931.

T. c. GRAY 'HQSE COUPLING DEVICE Filed Dec. 8. 1928 INVENTOR. T. C. G-RHY A TTORNE Y.

. pa ned Nov. 3,11931 1 it nnsnnononno emy, or snn rmmqcamronmni "i nosn ooniminnnvicn' i p p p l .Apiilicatioitihleid neb mter 3.192s, Serial No. 324,651. g p I -This.,invention relates A jnection "with itheends lOiof hose lengths. l1 forhose pipes. I H s v which may comprlsehos'e of any character. The general object off'the 'invention is to My invention as shownx'comprises a panel coupling devices provide an improvedhose' coupling which is simple, effective and which provides fluid tight sealfi I Another object ofthe invention is to provide aihose, coupling including members fit} tin-g within adjacentportions of-hose and a single member which engages the exterior of the adjacent ends of the hosei;

Another object is to provide a hose cou- .piing including threaded members fitting the inner end portions of the hose and anex ternal member engaging-the external end portions of the hose.

*A further L object of the invention .to

provide a hose coupling including" an outer I jsleeve engaging the ends of the hose and inner members forcingtheouter surface of the hose against the connecting member.

Other objects of the invention and the advantages thereof will be apparent from the following description taken inconnection i with the accompanying drawings wherein:

F 1g. 1 is a sectio'nal'view showing the end portions of two pieces of hose connected by my iinproved coupling. r V I a 'Fig. 2 is a section on line 2- 2 ofFig. l. i Fig- 3 is a'section on line 33 of Fig. 1.

- Fig. 4 is a side elevation partly in section showing inserted.

Fig. 5 is a View similar to Fig. 4 showing-the manner in which ihe internal coupiing member is moved to position.

-Fig. 6 is a similar View showing the second an internal coupling element being I internal coupling memberengaging the first and with the hose beginnlng ts engagement.

with the secondcoupling'm'ember. 7

Fig. 7 shows the coupling member in position and with the hoseends readyto be separated to make the seal tight. p '1 Fig.8 is a sectional view partly in elevation showing" my. invention employed in connection with a rotatablescrewcoupling; and V 'Fig...-9 is a sectional View of my invention in use: with a hydrant valve..

Referring to the drawings by reference characters 1- have shown my IIIVBIItIOIl'lIl coneludes; a central iwrenc'hengaging portions tivelyg These portions are shaped so they" will fit one within the other thereby allow- ;ing' the coupling elements g'theend of one v p 4.: The coupling element 13isthen inserted thetapereden'd 1610f thecollar. A qThe' companion coupling element"12"jis :then fitted in the end of the otherhose length 11 and inserted in the collar so that the wrench engaging portion, 19. fits the wrench engaging portion 2O. 'The hoseends "are then given' end 11, which engages the. element 12 to "innercoupling'elements 12 andjl3 and an outer collar 14. The collar Masshown', in-

ylindrical portion 15" and portions 1-6 which 'arejtapered "within and without "on a taper'to, 'suit the particular needs of the hose for which the collar is adapted. The-collar may be made of any suitable metal, fiber or other material.'and maybe of any diameter orlengtlr,

The coupling elements each includeabody portion 17 which has a central borev there- 'thlrough. The outer 'tion is taperedand is provided withthreads as at 18. These threads suitable configuration and shown 'in the drawingsas charactero'f the threads may be changed deportion of the body por- 18 may beof any although they are square threads the pending'on the hardness of .the hose and on otherconditions.

The couplingmembers are'provided with 19 "and 20 respecto be turned, In use the coupling collar is v fitted .over piece of hose as shown in Fig.

in the end of the hose and the collar moved "so that the coupling elementiswithin the cylindrical portion 15 of the'collar asshown {in Fig.5. Then by means of a wrench shown at 21 (or by other means) the. coupling element 13 is i s5 screwed home, after which the. end

of the hose 11 is moved within the collar so that the expanded portion thereof engages relative rotation causing the thread upon the coupling element12 and thereby toexpandthe end offthe hose 1J1. "After this is done the hose ends, are pulled apart. causing the collar to tightly grip the adjacent portionsof the hose to provide a fluid tight'joint. i V

In Fig. 8 I "have shown a slightly modified form of my invention wherein the hose end 11 is provided with a-couplin element 13 which is positioned to expand the end of the hose 11 which receives a collar including a cylindricalportion 26 having a flange'27 thereon and also including a tapered portion 28 which fits thetaper on the end of the hose I 11 to make a fluid tight'joint. The flange 27 engages a flange 29 on a rotatable coupling member 30, the use of which rwill-be readily apparent. I r v In Fig. 9 I show 'my'invention in connec 'tion with a speciallydesigned hydrant31 'which includes the usual valve stem c32'havgf 7 ring, a hand'wheel 33 thereona" The exit port of the valve is providedwith a rectangular :aperture 35 to receive the tool, engaging'portion19 of the member 13. A collar 36 is selcured to the hydrant as by welding or may 7 ,be made an integral partof the hydrant if desired. The member 13 is placed on the end of the "hose and ismoved inwardly throughthe collar 36jso that the Wrenchengaging portion 19 is positioned in the recess 35. The hose is then turned causing the mem-,

ber 13 to be screwed home thereby expanding the end-of the hose, after which the hose is pulled outward so that the expanded portion engages the tapered portion of the collar 36.

, With my invention the greater the pressure the greater the seal, however, when my I c v device is used'in a system having a low pres sure fluid and particularly in gas systems I may provide a, spring 40 which is interposed between the adjacent endsof the hose in the collar as shown in Fig. '1. *This spring is:

adaptedto force the expanded ends ofthe gaging said hose ends, the central portion of said collar being cylindrical and means within said hose'ends to force said hose ends outwardly against said collar, said means comprising hollow coupling elements, each of said elements having a threaded outer surface, said threaded outer, surface being tapered from one end towards theother'and said coupling elements havinginterengaging portions thereon whereby one may be turned by the vother,'and resilient means positioned in said collar,'surroundings aid coupling ele- -ments and engaging the end faces of said hose endsandadapted to resiliently urge said hose "ends into engagement with the, said tapered ends ofsaid collar." I V 3. In combination with a pair of adjacent hose-ends, a coupling member, including a collar having tapered end portions each engaging said'hose ends, the inner surfaces of said tapered end portions being smooth, Vmeans within said hose ends to force said whose ends outwardly against the smooth portion ofsaidcollar, said means comprising hollow coupling elements, each of said elements having a threaded outer surface, said threaded-outer surface being tapered from one end towards the other and said coupling elements having readily'releasable interengaging portions thereon whereby one may be turned by the other. a v v 7 a In testimony whereof, I hereunto aflix my signature av V THEQDOR E CLGRAY.

hose into fluid tight engagement with the r I taper on the collar after the expanding -liti v tingsarein'position. v 4

' Similarlyfunctioning springs may also be provided in the device shownfin Figsg8 and 9 ifdesired. 7 h .1 1 "From the foregoing description it will be apparent that I have provided a novel hose coupl ng which is simple in constructionand highIyeflicient in use.

Having thus described my invention, I claim:'

ilaln'combination with pair of adjacent, a hose ends, a coupling member, said coupling member including a collar having tapered end portions each engaging said hose ends, I

the centralportion of saidrcollar being cylindricalandmeanswithin said hose, ends to force said hose ends outwardly against said collar, andwother means within said collar I andfadapted vto resiliently urge said hose ends apart.

2.*In combinationwith a pairjof adjacent hose'ends, a coupling member including a 'collarhavingtapered end portions each en- 

